Minecraft with Tailscale Integration

This project sets up a Minecraft instance with Tailscale VPN integration using Docker Compose. It creates a secure, private network connection for your Minecraft instance using Tailscale.

Prerequisites

• Docker and Docker Compose installed on your system
• A Tailscale account and auth key (get one from https://login.tailscale.com/admin/authkeys)
• Basic understanding of Docker and networking concepts

Project Structure

ts-minecraft/
├── docker-compose.yml
├── tailscale/
│   ├── tailscale-data/  # Persistent Tailscale state
│   └── config/         # Tailscale configuration files
└── minecraft/
    └── data/         # minecraft data

Setup Instructions

1. Clone the Repository

   git clone https://gitea.damconsulting.llc/DAM/ts-minecraft
   cd ts-minecraft
   

2. Create Required Directories

   mkdir -p tailscale/tailscale-data minecraft/data
   

3. Configure Tailscale

   • Replace {{YOUR_TAILSCALE_AUTHKEY}} in the docker-compose.yml with your actual Tailscale auth key
   • Optionally, update the file in tailscale/config/serve.json if you need specific Tailscale serve configurations
     • CAUTION: Changing "${TS_CERT_DOMAIN}:443": false to true will expose the service to the internet

4. Configure Minecraft

   • See {{service_docs}} for configuration options

5. Start the Services

   docker compose up -d
   

6. Wait for Certificate to propagate [~2m]

7. Login

Services

minecraft-ts (Tailscale)

• Runs Tailscale VPN client
• Image: tailscale/tailscale:latest
• Container name: minecraft-ts
• Hostname: minecraft
• Requires NET_ADMIN and SYS_MODULE capabilities
• Persists state in ./tailscale/tailscale-data
• Uses configuration from ./tailscale/config

minecraft

• Depends on minecraft-ts service

Usage

• After starting the services your service should be available via tailnet at https://minecraft.{{YOUR_TAILNET_DOMAIN}}.ts.net ie https://minecraft.tail12345.ts.net/
• To manually get the Tailscale IP/hostname of your container:

  docker logs minecraft-ts
  

  Look for the Tailscale IP address in the logs.

Optional Features

• Uncomment and adjust the ports mapping if you need direct access (without Tailscale):

  ports:
  - 25565:25565
  

• Stopping the Services

  docker compose down
  

Troubleshooting

• Check container logs:

  docker logs minecraft-ts
  docker logs minecraft
  

• Ensure your Tailscale auth key is valid and not expired
• Verify the configuration files have proper permissions
• Make sure required directories exist before starting

Notes

• The Minecraft service uses the Tailscale service's network stack via network_mode: service:minecraft-ts
• Direct port mapping is disabled by default as Tailscale handles the networking
• Services restart automatically unless explicitly stopped
• For MODS there is an AWESOME tool for modifying a minecraft docker compose deployment. https://setupmc.com/java-server/
• For more information:
  • Tailscale documentation: https://tailscale.com/kb/
  • Minecraft documentation: https://docker-minecraft-server.readthedocs.io/en/latest/
  • Minecraft repository: https://github.com/itzg/docker-minecraft-server